673011313 has 4 divisors (see below), whose sum is σ = 724781428. Its totient is φ = 621241200.

The previous prime is 673011307. The next prime is 673011319. The reversal of 673011313 is 313110376.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (673011307) and next prime (673011319).

It can be written as a sum of positive squares in 2 ways, for example, as 412414864 + 260596449 = 20308^2 + 16143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673011313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673011319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25885038 + ... + 25885063.

It is an arithmetic number, because the mean of its divisors is an integer number (181195357).

Almost surely, 2^673011313 is an apocalyptic number.

It is an amenable number.

673011313 is a deficient number, since it is larger than the sum of its proper divisors (51770115).

673011313 is a wasteful number, since it uses less digits than its factorization.

673011313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51770114.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 673011313 is about 25942.4615832808. The cubic root of 673011313 is about 876.3429990773.

Adding to 673011313 its reverse (313110376), we get a palindrome (986121689).

The spelling of 673011313 in words is "six hundred seventy-three million, eleven thousand, three hundred thirteen".